if i remove my EGR Valve will that give me more HP?
if i remove my EGR Valve will that give me more HP?
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From: usa
EGR...exhaust gas recirculation. IT takes spent exhaust fumes and pushes a small amount of them back intot he intake. The idea behind this is that some unburned fuel exits through the exhaust...so they take a little of this exhaust and make you burn it twice, trying to burn what was left in the beginning. Of course, even though there is a bit of fuel vapor present, there is much more waste entering with it, and waste doesnt produce any power like fresh intake does, so blocking it off does give a slight performance increase.
IF youre under the intake and doing some other work, then take it off...but dont make a special job just for that.
IF youre under the intake and doing some other work, then take it off...but dont make a special job just for that.
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From: Atlanta,Ga
do you have a pic of what it looks like? thanks for the replies guys im just trying to learn! Im going to by that damn book from autozone that tells you a shitload about your car! I forgot the name of it thought.
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From: usa
Man, after reading(and replying to) several of your posts, (dont take this the wrong way) do you even *think* before you open your mouth? I mean, Ive asked dumb **** in my time, but I try to keep ti to a minimum, to keep myself from looking like a jackass. IF you ever read half the threads on this forum, or even people's mod list, youd see that you can run with NO emissions. DO you think us guys who do so run around with our cars smoking, or halfassed running? 
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From: Atlanta,Ga
chill ****** im just trying to learn man and do you honestly think i give a damn about people that ive never seen before think? Hell no! I appreciate you answering my stupid questions! and my car doesn't run half assed thats why i asked if it would smoke or anything so it doesn't end up running halfasses sorry for being on the illiterate when it comes to rotarys!!
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From: usa
Dont be a bitch 
I told you not to take it the wrong way, Im just saying, you're startign to remind me of the guy who sat in the back corner of class goofing off util it was time for the test, at which time he was searching for a cheat partner
Relax, all in fun, just consider listening/reading more than asking until you learn the basics, eh?
I told you not to take it the wrong way, Im just saying, you're startign to remind me of the guy who sat in the back corner of class goofing off util it was time for the test, at which time he was searching for a cheat partner
Relax, all in fun, just consider listening/reading more than asking until you learn the basics, eh?
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From: Atlanta,Ga
Well i do read and half the **** i don't understand thats why i ask these dumb questions!! I get mad easily if you can't tell : ) didn't mean to take it they wrong way. The way you put it though pissed me off. Im still young and yes everyone goofs off in class. I still maintain good grades though : P
I'm a boost creep...
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From: Auckland, New Zealand
Originally posted by hypntyz7
EGR...exhaust gas recirculation. IT takes spent exhaust fumes and pushes a small amount of them back intot he intake. The idea behind this is that some unburned fuel exits through the exhaust...so they take a little of this exhaust and make you burn it twice, trying to burn what was left in the beginning.
EGR...exhaust gas recirculation. IT takes spent exhaust fumes and pushes a small amount of them back intot he intake. The idea behind this is that some unburned fuel exits through the exhaust...so they take a little of this exhaust and make you burn it twice, trying to burn what was left in the beginning.
This is from Vision Engineer:
Exhaust Gas Recirculation
Article by Duane Bong
Introduction
Oxygen is required for fuel to be burnt in an engine. This is usually supplied by taking in air from the atmosphere. However, the air that surrounds us also contains a large quantity of nitrogen. The high temperatures found within the engine cause nitrogen to react with any unused oxygen to form nitrogen oxides [NOx].
The Problem
Nitrogen oxides are one of the main pollutants emitted by vehicle engines. Once they enter into the atmosphere, they are spread over a large area by the wind. When it rains, water then combines with the nitrogen oxides to form acid rain. This has been known to damage buildings and have an adverse effect on ecological systems.
Exhaust Gas Recirculation
The most effective means of tackling nitrogen oxides is to use Exhaust Gas Recirculation [EGR]. This technique directs some of the exhaust gases back into the intake of the engine. These gases have already been used by the engine and no longer contain much oxygen. By mixing the exhaust gases with fresh air, the amount of oxygen entering the engine is reduced. Since there is less oxygen to react with, fewer nitrogen oxides are formed. This can greatly reduce the amount of nitrogen oxides that a vehicle releases into the atmosphere.
Article by Duane Bong
Introduction
Oxygen is required for fuel to be burnt in an engine. This is usually supplied by taking in air from the atmosphere. However, the air that surrounds us also contains a large quantity of nitrogen. The high temperatures found within the engine cause nitrogen to react with any unused oxygen to form nitrogen oxides [NOx].
The Problem
Nitrogen oxides are one of the main pollutants emitted by vehicle engines. Once they enter into the atmosphere, they are spread over a large area by the wind. When it rains, water then combines with the nitrogen oxides to form acid rain. This has been known to damage buildings and have an adverse effect on ecological systems.
Exhaust Gas Recirculation
The most effective means of tackling nitrogen oxides is to use Exhaust Gas Recirculation [EGR]. This technique directs some of the exhaust gases back into the intake of the engine. These gases have already been used by the engine and no longer contain much oxygen. By mixing the exhaust gases with fresh air, the amount of oxygen entering the engine is reduced. Since there is less oxygen to react with, fewer nitrogen oxides are formed. This can greatly reduce the amount of nitrogen oxides that a vehicle releases into the atmosphere.
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From: Birmingham, AL
Originally posted by NZConvertible
Interestingly, JDM cars like mine are rated at exactly the same power as US models despite not having an EGR valve. So either the power gain without one is negligible or the power figures are fudged. Probably both...
Interestingly, JDM cars like mine are rated at exactly the same power as US models despite not having an EGR valve. So either the power gain without one is negligible or the power figures are fudged. Probably both...
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From: Atlanta,Ga
thanks just a newbie here trying to learn i always do a search on most the **** but half the time it doesn't cover the question that i wanted to know : P So expect more dumb questions from me : ) hopefully ill run out of them cause i can't think of anymore!
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From: Columbus
Take it off only if you are working with the upper Intake manifold off like to change your vac lines. You need it to pass emmisions, if you have to do that. Usually the EGR doesnt work properly after all these years because the rubber diaphragm is rotted and cracked I still have mine from when I took mine off Ill post a pick up later. Also cap off the vac line going to it and thats it. More or less
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From: Birmingham, AL
Originally posted by von
call me stupid but no matter how many pics I see I still dont know were this piece of **** is? Anyone.?And u dont have to take it off I heard. U can plug it up right?
call me stupid but no matter how many pics I see I still dont know were this piece of **** is? Anyone.?And u dont have to take it off I heard. U can plug it up right?
TII: rear of lower intake manifold.
Rotary Freak
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From: sandiego, ca
oh and stevo..heres some advice...Think about name of the part...EGR... wich is exaust gas reciculatory or something...No think about its operation. Then think if it would make your car smoke then try and logically explain to yourself why it would and u might get stumped. I try and explain things I dont understand out loud..If it doesent make sense then I ask. Im just saying try a little big harder or go look in your autoshop book and look it up.
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From: usa
This will be one of those times you didn't get it quite right!
Okay, so it recirculates nitrogen oxide rather than unburnt fuel...but I was close enough to the theory of operation
Thanks for keeping me honest man!
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From: Vancouver
Originally posted by Samps
Why no EGR on 89-92's? 86-88 had it and 93-95 had it also. Why would they skip a few years?
Why no EGR on 89-92's? 86-88 had it and 93-95 had it also. Why would they skip a few years?
Henrik
87TII
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